6.4.4 Analog part - Measurement principle
The measurement principle of actual value encoding is used. With a sampling rate of
approx. 1.05kHz each millisecond a new value is available in the periphery input word.
This value may be read by the user program. The "previous" value is read again if your
access time is shorter than 1ms.
An integrated 400Hz low-pass filter attenuates analog input signals of channel 0 to 3.
Input signals with a frequency of over 400Hz are not allowed.
Each analog current / voltage input has a configurable software filter for the input signals.
The configured interference frequency (50/60Hz) may be filtered by this software filter.
The selected interference suppression also determines the integration time. At an inter-
ference suppression of 50Hz the software filter forms the average based on the last 19
measurements and saves the result as a measurement value. The interference frequency
50Hz or 60Hz may be suppressed according to the parameter set. A setting of 400Hz will
not suppress interference.
1 from 19 at 50Hz interference frequency
Overview
Hardware filter
Software filter
VIPA System 300S
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Deployment I/O periphery
Analog part > Analog part - Measurement principle
HB140 | CPU-SC | 313-5BF23 | en | 19-01
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